Brush Type Automatic Self Cleaning Filter

Automatic Backwash Filter

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Brush type automatic self cleaning filter is a kind of filter that is suitable for bad environment, it can be equipped with 3500 microns - 50 micron mesh and 8-36 "pipeline diameter for different using requirements. The cleaning process is started by a differential pressure switch which is monitoring the different pressure of inlet and outlet , usually the default value of pressure difference switch is 0.5 bar (7 psi).

With advantages of continuously fluid flow, safety operation, simple maintenance , this filter is widely used in all industries area.



Product Details

Brush type automatic self cleaning filter is a kind of filter that is suitable for bad environment, it can be equipped with 3500 microns - 50 micron mesh and 8-36 "pipeline diameter for different using requirements. The cleaning process is started by a differential pressure switch which is monitoring the different pressure of inlet and outlet , usually the default value of pressure difference switch is 0.5 bar (7 psi).
With advantages of continuously fluid flow, safety operation, simple maintenance , this filter is widely used in all industries area.

 

Working principle

When the differential pressure of inlet and outlet reaches the preset value, the filter will start the self cleaning process. The whole self-cleaning process contains two steps: open the drain valve on the end cover of the filter; the two stainless steel brushes in the filter mesh is driven by motor, then the impurities which is captured by filter mesh will be brushed down by the steel brush and will be discharged from the drain valve. The whole cleaning process takes about 15 to 60 seconds. During this time, the filtration system does not stop and the whole operation process is controlled by a control box.



Features and advantages

1.Continuously water supply: water consumption in the cleaning process is less, which is nearly 5% of filter water yield, the flushing time is 2 ~ 15 seconds.
2. High filtration precision: the filtering precision can reach 20 microns.
Large filtering area: the effective filtering area of standard filter screen is 7 ~ 40 times of the inlet area.

3. Reliable cleaning types: there are many kinds of control mode: manual, differential pressure, timing, PLC program logic control and other control mode for choices. 
Simple and economy installation: diversified structure, suitable for installation in all kinds of site conditions, and does not affect the running effect.
4. Long service life: Normally the working life will be more than 10 years, according to the requirements, the stainless steel mesh can be easily replaced by different specifications.

 

 

 

General parameters:

Operation flow rate : 20-5000m3/h
Min working pressure : 2bar;
Max working pressure : 10bar ; 150psi;
Filtering area : 75000px2 -20000 cm2;
Inlet/outlet diameter : 50,80,100,150,200,250,300,350,400,500,600,800mm;
Max working temperature : 50°C;

Cleaning parameters

Drain valve Size:25mm; 50mm; 80mm;
Cleaning time:30-60S;
Cleaning water consumption (every time) ≤5%./p>

material:

Filter body : Carbon steel Epoxy resin coating; stainless steel 316、304

Filter mesh : Stainless steel 316L Wedge wire cartridge ; Stainless steel 316L woven wire cartridge
Clean body (interior) : Stainless steel 304,316L, POM;
Drain valve : Cast iron, epoxy resin coating; 304,316L;
Seal ring : synthetic rubber, PTFE.


Technical parameter 


Application

Water and sewage
Pulp and paper
Chemical
petrochemical industry
steel
nonferrous metal
Plastic extrusion processing
Machine coolant filtration
Construction field